/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.dubbo.remoting.http12.netty4;

import org.apache.dubbo.remoting.http12.command.HttpWriteQueue;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.EventLoop;

public class HttpWriteQueueHandler extends ChannelInboundHandlerAdapter {

    private HttpWriteQueue writeQueue;

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        EventLoop eventLoop = ctx.channel().eventLoop();
        this.writeQueue = new HttpWriteQueue(eventLoop);
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        this.writeQueue = null;
    }

    public HttpWriteQueue getWriteQueue() {
        return writeQueue;
    }
}
